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Redundancy and Tunnel Distribution
References
Configuring a Destination Profile for Dynamic IP Tunnels
Modifying the Default Destination Profile
Copyright © 2010, Juniper Networks, Inc.
The combination of an ES2 4G LM or an ES2 10G ADV LM with an ES2-S1 Service IOA
provides a dedicated tunnel-server port that is always configured on the IOA. Unlike SMs,
the ES2 4G LM and the ES2 10G ADV LM require the ES2-S1 Service IOA to condition it
to receive and transmit data to other line modules. The ES2-S1 Service IOA also does
not have ingress or egress ports.
You can also create IP tunnels on IOAs that support shared tunnel-server ports. You can
configure (provision) a shared tunnel-server port to use a portion of the bandwidth of
the IOA to provide tunnel services. For a list of the IOAs that support shared tunnel-server
ports, see the E120 and E320 Module Guide.
All line modules forward traffic to tunnels. For information about the IOAs that accept
traffic for tunnels, see the E120 and E320 Module Guide.
For information about the redundancy and tunnel distribution mechanisms supported
for SMs, the ES2-S1 Service IOA, and shared tunnel-server ports, see "Configuring Dynamic
IP Tunnels" on page 251.
For more information about IP tunnels, see the following documents:
RFC 1700—Assigned Numbers (October 1994)
RFC 1701—Generic Routing Encapsulation (October 1994)
RFC 1702—Generic Routing Encapsulation over IPv4 Networks (October 1994)
RFC 2003—IP Encapsulation within IP (October 1996)
RFC 2784—Generic Routing Encapsulation (GRE) (March 2000)
The tasks in this section describe how to configure a destination profile for dynamic IP
tunnels.
Default destination profiles for GRE and DVMRP are generated at system startup. The
system supports only one default GRE destination profile and one default DVMRP
destination profile.
The default destination profile enables the application to automatically create dynamic
IP tunnels without user configuration for any virtual router, destination address, or source
address.
By default, the data MDT application is disabled in the default destination profiles. The
Mobile IP application can use the default destination profile. You can modify the
configuration of the default destination profiles.
Chapter 10: Configuring Dynamic IP Tunnels
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